I want to lose ma weight mostly ma belly

Choose healthier foods/drinks, watch portion size (many people eat more than is necessary), and try to exercise daily or at least several times a week. You can find exercise videos online, get DVDs, or join a fitness center . Try a sport you might enjoy... cycle, dance, swim, etc, or simply start walking. Maybe see if a friend or family member would also like to lose some weight and you can make some changes together.

A big belly can be from heredity, or it can be from drinking alcohol, or if it's big all around (proportional to legs) it can be a possible sign of diabetes. Or some combination of all of them.
Sit ups are one good exercise for that area. Put your toes under a couch and do 20 a day, adding 10 more each time it gets easier.

What is your age? Sex? Height?

What is your current exercise program?

But you exercise, and watch what you eat. Simple, but most people will not do it